| 摘要 |
<p>A magnetoresistive head comprising a magnetic sensor having a magnetoresistive ferromagnetic film, which includes tapered portions at both ends of a signal detection region. A ferromagnetic foundation film is formed on the taper portion of the magnetic sensor as a film for applying a vertical bias magnetic field to the magnetic sensor, and a permanent magnet film is formed on this foundation film. The permanent magnet film applies the vertical bias magnetic field to the signal detection region, and when coming into contact with the taper portion of the magnetic sensor through the ferromagnetic foundation film, it couples with the ferromagnetic film constituting the magnetic sensor in a magnetic exchange mode. Accordingly, magnetic characteristics of the permanent magnet film for applying the vertical bias magnetic field of the magnetoresistive head can be improved.</p> |
